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DIFFERENCE BETWEEN SIGNALS AND PARAMETERS
Signals would be t vs amplitude plots. Parameters are charactersitics of signals such as amplitude, frequency, phase etc.

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a 3d plot but in a specific range
You pick your x,y to the given range. x = linspace(0,1) ; y = linspace(2,3) ; [X,Y] = meshgrid(x,y); psi_19 = (2*X) + Y ...

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Image processing code debugging
This line: P = regionprops(Iin, 'Perimeter'); Check the class of P class(P) It seems it is a structure and you can use it in...

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How to use interpolation?
Let lon,lat,U be your 2D data, and x,y,u be your buoy data. Ui = interp2(lon,lat,U,x,y) ; If your data is #d (I hope it is),...

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How to replace the zero with NaN in the specific column of cell arrays?
Let A be your m*3 array. A(A(:,2)==0,2)=NaN ; % repalce second column with NaN's A(A(:,3)==0,3)=NaN ; % replace third column ...

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Find x and y cordinates and t for z=0
Let x,y,z,t be yout required arrays. GEt the index of z where it is z = 0. Using this index, you can get what you want. tol = ...

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how do i plot this?
x=linspace(-2,6) ; f=(2*x./x.^2+1)-(x./sqrt(3*x+6)); %<--- element by element division plot(x,f)

más de 3 años hace | 1

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How to crop the image within certain limits?
Read about imfreehand, Freehand. If you know thoese certain values. Use contour to get the closed region of the required region...

más de 3 años hace | 1

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Inverse of a matrix in MATLAB and Python
You are to trying to fid the inverse of a singular matrix. A singular matrix is the one which doesn't have inverse. So different...

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How to write code for moments matrix?
https://in.mathworks.com/matlabcentral/answers/71678-how-to-write-matlab-code-for-moments https://in.mathworks.com/help/stats/...

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Problem reading double array from excel
REad about readtable

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Same code in a loop but different plots
area also supports linestyle, none. load('sample.mat') thr = [0.0057 0.0401 0.0090 0.0216]; t = (0:length(sample)-1)/2000;...

más de 3 años hace | 1

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Extracting text from a video
v = VideoReader('Large_Patron_Trim\Large_Patron_Trim.mp4'); N = v.NumFrames ; % Total number of rames ROI = [1008 215 50 3...

más de 3 años hace | 1

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BAR GRAPH plot - grouped legend
Refer this: https://in.mathworks.com/matlabcentral/answers/1670649-bar-plot-with-a-hatched-fill-pattern?s_tid=srchtitle https...

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Hatched Bar graph or Pattern bar graph
Refer this: https://in.mathworks.com/matlabcentral/answers/1670649-bar-plot-with-a-hatched-fill-pattern?s_tid=srchtitle

más de 3 años hace | 1

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Average intensity of an image
A = magic(5) ; [m,n] = size(A) ; iwant = 0 ; for i = 1:m for j = 1:n iwant = iwant+A(i,j) ; end end iwan...

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Why am i recieveing only one output even though my input is a matrix
You need to use element by element operations. clc; clear all ; clear all close all %hertzian contact calculator for a spher...

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How to use regression to find equation of data set?
x = [12 12.5 13 13.5 14] ; y = [61 61.5 62 62.5 63] ; [X,Y] = meshgrid(x,y) ; Z = [120 114 103 93 80 124 120 109 97 85 1...

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My code is returning a complex array
There is a typo in your code. x = -10:1:10 ; y = zeros(size(x)) ; for j = 1:length(x) y(j) = power(2.72,-0.2*j); %<--...

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i can not load load WaveformData
That matfile will be available in 2022b version. It seems you are using a lower version.

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2D interpolation of data
data = [1 1 7 2 3 9 3 5 8 4 6 4] ; x = data(:,1) ; y = data(:,2) ; z = data(:,3) ; F = scatteredInterpolant(x,y,z) ; xi...

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how can I calculate ocean current speed from u and v data?
Let u and v be the components. s = sqrt(u.^2+v.^2)

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Plot eigenvectors of a square matrix in Matlab
plot(Eig_vector)

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Using solution from vpasolve and syms for another function
A =[ 0 0 0 1.0000 0 0 0 0 0 0 1.0000 0 ...

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How can I make my code run faster?
c = zeros(size(d)) ; idx1 = d >= 0.05 ; c(idx1) = 1 ; idx2 = d < -0.05 ; c(idx2) = -1 ;

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repetitive looping and plotting
T = readtable('https://in.mathworks.com/matlabcentral/answers/uploaded_files/1175788/newdata3.csv') ; data = reshape(T.(2),6000...

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Interpolation of missing matrix element
M = [43.13 0 42.88;0 39.32 0;41.81 0 43.27]; M(M==0) = NaN M = fillmissing(M,'linear') M = fillmissing(M','linear')'

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How to separate points under a line in a scatter plot
Refer the theory here: https://www.emathzone.com/tutorials/geometry/position-of-point-with-respect-to-line.html %Importing xy ...

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Why am not getting any graph?
clc; clear all ; clc; clear; syms p; x = 13.61015; y = 13257; a = 5.14; b = 11.47; err1 = 0.000001; f = (x^3 + p^2*x^2 ...

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How to use importdata to import the data from a csv file
Read about readtable.

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